In early 1992, Davis was implicated in the House banking scandal or congressional check-kiting scandal. The Congress ran its own bank and allowed members who wished to do so to frequently write overdrawn or insufficient fund checks to their account. Davis was one of the most notorious of these, writing many overdrawn checks. There was no illegality, though, since the bank allowed members overdraft protection.

He became a lobbyist for K&L Gates. He was active in the Bush campaign, having served on the Michigan Bush Committee, and was a friend and former colleague of Vice President Dick Cheney.

According to the Chicago Sun-Times of May 31, 1989, Davis revealed that he hired a woman with whom he lived for his committee staff, but he said he had not violated House rules. Davis was separated from his third wife, Marty Davis, and had filed for divorce. He acknowledged recommending that Brook Ball, 27, be hired for the House Merchant Marine staff. He married Ball, who survives him, as do his five children.

Davis died at a hospice in Arlington, Virginia at age 77 of heart and kidney failure.[1][2][3]
Robert is interred at Protestant Cemetery Mackinac Island Michigan, USA